Wrench



June 27, 1933. Q ALEMANY 7 1,915,396

WRENCH Filed Jan. 3, 1931 f are/17 m A8. fi yg 5% M Patented June 27,1933 Perl:

FFECE ALEJANDRO CALBO ALEMANY, OF AGE/ES, SPAIN WRENCH Application filedJanuary 3, 1931, Serial No. 506,461, and in Spain August 27, 1930.

with an inclined surface which is engaged by the said screw-threadedmember for the purpose of causing the movable jaw to slide relatively tothe fixed jaw. The operation of sliding the movable aw towards the fixedjaw may be effected positively by co-operation with the inclined surfaceof the screwthreaded member. The movable jaw may be pressed apart-fromthe jaw under the action of a springwhich may engage an over-hanging lipformed on the movable aw.

The screw-threaded member may be formed at one end with a screw-threadedportion co-operating with a screw-threaded section in the handle closeto the jaws, and at, its other end with a spiral groove which is engagedby a nut member capable of sliding in the handle. The nut member mayslide in grooves or channels formed in the handle, and be formed with aprojection engaging the spiral groove in the screw-threaded member.

The movable jaw or a part thereof may be located in a space or grooveformed in the The invention will be further described with reference tothe accompanying drawing in which Figure 1 shows a side view, partly insection, of the wrench,

Figure 2 a side view of the movable jaw,

Figure 3 a cross sectional view of the movable jaw, and

Figure 4 a side view of the fixed jaw.

Referring to the drawing, the letter a indicates the fixed aw which isformed in a piece with the wrench handle Z and Z) the movable jaw of thewrench; 0 is a guide groove in the movable jaw; the movable jaw b isformed with an overhanging lip (Z upon which the free end of a spring 6presses; the other end of the said spring 6 being attached to the handleZ of the wrench at g, and tending to keep the movable jaw 6 open andseparated from the fixed jaw a; f is a threaded portion through whichruns the top part of a spiral screw it, h. The said spiral screw it, hof the sliding jaw is formed with two different screw threads; theshorter thread it in the toppart is a screw thread co-operating with thescrew threaded portion f and the longer thread it in the lower part ofthe handle is spiral; z' is a cavity in the handle er the wrench inwhich is located 6 the spiral screw 72, are two guides in the sides ofthe cavity in the handle Z on which rests and slides a running nut Kformed with low handle rigidly attached to said fixed jaw,

a movable jaw slidable relative to said fixed aw and having mclinedsurface, a handoperable oppositelyscrew=threaded member 10- S cated insaid handle engaging said inclined surface of said movablej aw and meanscooperating with the opposite screw threads upon said member forreciprocating said screw member.

I 2. A wrench comprising a fixed jaw, a hollow handle, rigidly attachedto said fixed j aw, a movable jaw slidable relatively to said fixed jaw,an over hanging lip formed on said movable jaw, a spring attached tosaid handle engaging said over hanging lip, and a hand operableopposltely screw threaded m-en'1berlocated in said handle cooperatingwith said movable aw and means cooperating with said opposite threadsupon said mem- 100 her for reciprocating said member and therebyoperating the movable jaw in one'direction while the spring operates themovable jaw in the other;

3. A wrench comprising in combination a fixed jaw, a hollow handlerigidly attached to said fixed jaw, a movable jaw slidable relatively tosaid fixed jaw having inclined surface, a hand operable oppositelyscrewthreaded member located in said handle engaging said inclinedsurface of said movable jaw, means cooperating with said oppositescrew-threads for reciprocating said member, an over hanging hp formedon said movable aw and a spring attached to sa d handle engaging saidover hanging 11p.

4. A wrench comprlslng in combination a fixed jaw, a hollow handleattached to said fixed ,jaw having a screw-threaded portion adjacentsaid fixed jaw, a movable jaw slidable relatively to said fixed jawhaving an inclined surface, an overhanging lip formed on said movablejaw, a springattao'hedto said handle engaging said overhanging lip, ahand operablemember located in said'handle and engaging said inclinedsurface of said movable jaw, said hand operablemember having oppositelyscrewthreaded portion one of said portions cooperating withsaidscrewthreaded portion upon said handle."

5. A'wrench comprising a fixedjaw, a hollow handle rigidly attached tosaid fixed jaw having longitudinal grooves therein, a 1nov- ,tioncooperating with said able jaw slidable relatively to said fixed jawhaving an inclined surface, an overhanging lip formed on said movablejaw, a spring attached to said handle engaging said over hanging lip, ahand operable member located in said handle engagingsaid inclined .sur-

face of said movable having a spiral groove therein, and a nut membersliding in said-longitudinalv grooves having a projecspiral grooveinsaid member.

6. A. wrench comprising a fixed aw, a hol- I low handle rigidlyattached. to said fixed jaw having a screw-threaded portion adjacentsaid fixed jaw, said handle having longitudina'l grooves therein,,amovable jaw slidable relative to said fixed jaw,' having an inclinedsurface, an overhanging lip formed on said movable jaw, a springattached to said handle engaging said overhanging 11p, a handoperablemember located 1n said handle engaging said inclined. surfaceof saidmovable jaw,

saidhand operable memberhaving a screwthreaded portion cooperating withsaid screwthreaded portion upon said handle, said hand operable memberalso having an oppositely disposed spiral groove and a nutmember'sliding in said longitudinal grooves 'having a portioncooperating with said spiral groove. In testimony whereof I have signedmy namelto this specification.

ALEJANDRO CALBO ALEMANY.

